Current status: 95/150 supporters
USB-C should be able to daisy-chain devices right?
From what I understand, you can connect the new MacBook Pro's to one of the new LG 5k monitors and it'll drive the display and it will charge your laptop at the same time. The display works as a hub too.
I only watched the first 10 minutes and clearly he found some kind of bug. The bug could also be in the adapter, who knows? If it's a problem with the MacBook, I'm sure Apple will fix it.